I’ve now won two practice games of Civilization V, and while it’s still early days for me, so far the new city-states system (which I blogged about back before the game came out) has already given me some “wow, this is cool” moments. And in the process, the game gave me some food for thought, especially in light of the news stories of 2010.

My first game was a simple two-player affair, myself as the Siamese against AI-controlled Askia, the ruler of Songhai. We started on the same continent, and the mountain range dividing our two holdings was impassable except in two locations. I quickly secured one and packed it with soldiers. The other was held by a city-state, whose loyalty I bought with showers of gold. And while I was at it, I paid off every other city-state in the game. One fine day, Askia thought it would be a good idea to attack my strategically situated ally, and to cap things off, went on to goad me: “I just declared war on your little friend – what are you going to do about it?”

I declared war, of course. There was no way I could let an ally in such a vital location be conquered. And in a touch that impressed me, all my other city-state allies followed me to war in a “coalition of the willing”.

In the second game I won, the city-states initially didn’t play so dramatic a role. For most of the game, my city-state allies kept me well supplied with food and culture: crucial to my nation’s prosperity, yes, but individually not life-and-death stuff. But then the modern day rolled around, and along with it the need for oil and aluminium. Oil in case I needed to build up a war machine; aluminium not just for my military, but also so I could build hydro plants and spaceship factories. I had neither in my territory. But luckily, two of my city-state allies did. And so concerned was I to protect my supply that I placed defensive forces in their territories and invested in a modern, oceangoing navy that could, if needed, sail to their aid. Nobody attacked them in this game, but I know what I would have done if war broke out.

And therein lies the beauty of the city-states concept. With one simple, abstract game mechanic, Firaxis has captured a little bit of the feel of great-power diplomacy and geopolitics. Civilization V made me build and deploy expeditionary forces not for simple territorial aggrandisement – as I would have in the previous games – but so I could protect my national interests overseas. And it made me willing to treat any attack on flyspeck countries halfway around the world as an act of war directed against myself. It’s one thing to intellectually consider why real-life world leaders make the decisions they do; it’s another to understand at a gut level. And for a few hours this month, Civilization V put me into their shoes.